chalcedonic是什么意思
2023-12-08 11:47:17
chalcedonic
adj. 石髓的；坚强的
例句
- A siliceous rock of chalcedonic or opaline silica occurring in limestone. 硅石出现在灰岩中的玉髓或蛋白色硅石
- This rock contained chalcedonic cement before it underwent diagenesis, a process where low temperatures and low pressures alter the content of sediments before they finally lithify, or turn into rock. 在它经历成岩作用之前，它含有燧石质的胶结成分。成岩作用过程中，低温抵压改变了沉积物的成分，而后固结成岩。
- a siliceous rock of chalcedonic or opaline silica occurring in limestone 出现在灰岩中的玉髓或蛋白色硅石
- chalcedonic chert 玉髓状燧石